CN105073486A - Power source controller - Google Patents

Power source controller Download PDF

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Publication number
CN105073486A
CN105073486A CN201480017416.2A CN201480017416A CN105073486A CN 105073486 A CN105073486 A CN 105073486A CN 201480017416 A CN201480017416 A CN 201480017416A CN 105073486 A CN105073486 A CN 105073486A
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CN
China
Prior art keywords
electric power
supply
power
cond
battery
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Granted
Application number
CN201480017416.2A
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Chinese (zh)
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CN105073486B (en
Inventor
冈村贤树
高松直义
梅野孝治
户村修二
石垣将纪
柳泽直树
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Toyota Motor Corp
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Toyota Motor Corp
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Publication of CN105073486B publication Critical patent/CN105073486B/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/40—Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/13—Maintaining the SoC within a determined range
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/14—Preventing excessive discharging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/20—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having different nominal voltages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L7/00—Electrodynamic brake systems for vehicles in general
    • B60L7/10—Dynamic electric regenerative braking
    • B60L7/14—Dynamic electric regenerative braking for vehicles propelled by ac motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L7/00—Electrodynamic brake systems for vehicles in general
    • B60L7/10—Dynamic electric regenerative braking
    • B60L7/18—Controlling the braking effect
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/10—DC to DC converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/10—Vehicle control parameters
    • B60L2240/12—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/52—Drive Train control parameters related to converters
    • B60L2240/525—Temperature of converter or components thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/545—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/547—Voltage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/549—Current
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/40—The network being an on-board power network, i.e. within a vehicle
    • H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S903/00—Hybrid electric vehicles, HEVS
    • Y10S903/902—Prime movers comprising electrical and internal combustion motors
    • Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
    • Y10S903/904—Component specially adapted for hev
    • Y10S903/907—Electricity storage, e.g. battery, capacitor

Abstract

The invention discloses a power source controller (40) for controlling a vehicle that travels using a power source system (30). The power source includes a first power source (31) and a second power source (32), wherein the power source controller (40) is provided with an adjusting means (40) and a setting means (40). The adjusting means (40) transfers power between the first power source and the second power source at a desired rate that indicates the amount of electrical power transferred per unit time, and thereby adjusts the SOC (state of charge) of the first power source and/or the second power source. The setting means (40) sets the transfer rate so that the transfer rate varies with the vehicle speed.

Description

Power control
Technical field
The present invention relates to the technical field for the power control that the vehicle travelled controls to using the power-supply system such as comprising two kinds of power supplys.
Background technology
Propose the vehicle (such as, electric motor vehicle or motor vehicle driven by mixed power) (with reference to patent documentation 1 ~ 2) possessing the power-supply system comprising two kinds of power supplys.As two kinds of power supplys, can example if long-time release the power supply of (namely exporting) constant power and the power supply of discharge and recharge (i.e. input and output) rapidly can be carried out.
At this, Patent Document 1 discloses a kind of control method, when power running, when the electric discharge required supply unit requires that the maximum output that output is battery is following, battery exports electric discharge and requires the whole of output.And, Patent Document 1 discloses a kind of control method, when the electric discharge required supply unit requires that output exceedes the maximum output of battery, cond exports the part (or discharge vessel exports electricity and requires the whole of output) exceeding the maximum output of battery in electric discharge requirement output.By such control method, the steep anxious electric discharge from battery can be prevented, thus can suppress the deterioration of battery.
And, Patent Document 2 discloses a kind of control method, when braking (regeneration), by limiting to the charging of storage battery, increasing the sharing of charging to bulky capacitor cond.By such control method, the charging rapidly to storage battery can be prevented, thus can suppress the deterioration of battery.
At first technical literature
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 7-245808 publication
Patent documentation 2: Japanese Unexamined Patent Publication 5-30608 publication
Patent documentation 3: Japanese Unexamined Patent Publication 2012-110071 publication
Summary of the invention
The problem that invention will solve
But in the power-supply system comprising two kinds of power supplys, in order to adjust the SOC (such as, consistent with the SOC center as aim parameter) of each power supply, the supply sometimes carrying out electric power between two kinds of power supplys accepts (namely receiving and dispatching).But, in patent documentation 1, do not do any mentioning for specifically which kind of form supply accepting electric power with between battery and cond.Equally, in patent documentation 2, do not do any mentioning for specifically which kind of form supply accepting electric power with between storage battery and cond.Namely, in patent documentation 1 and 2, for when at the SOC in order to adjust each power supply, between two kinds of power supplys, supply accepts electric power, the battery (storage battery) how effectively operating characteristic is different and cond (condenser) do not do any mentioning.Therefore, the problem points that possibly more efficiently cannot use battery and the such technology of cond is produced.Consequently, such as, the rideability or burnup etc. of vehicle may be sacrificed.
In the problem that the present invention will solve, situation as described above can be enumerated as an example.Problem of the present invention is to provide the power control that more efficiently can use two kinds of power supplys in a kind of vehicle possessing two kinds of power supplys.
For solving the means of problem
<1>
In order to solve above-mentioned problem, the vehicle that power control of the present invention travels using power-supply system controls, described power-supply system comprises the first power supply and little and export these both sides of large second source with described first power supply phase ratio capacitance, described power control possesses: adjustment unit, accepting electric power by supplying between described first power supply and described second source with the supply receptance desired by the amount of power representing time per unit supply acceptance, adjusting the electric power storage surplus of at least one party in described first power supply and described second source; And setup unit, the mode described supply receptance being changed with the speed of a motor vehicle according to described vehicle sets described supply receptance.
Power control of the present invention can the vehicle travelled controls to using the power-supply system comprising the first power supply and these both sides of second source.
Use such power-supply system and the vehicle that travels when power running, typically use the electric power that exports from power-supply system and travel.Specifically, such as, vehicle is used the power of the rotating machine driven by the electric power exported from power-supply system and travels.Consequently, when vehicle carries out power running, most cases is one or both output power (that is, discharging) in the first power supply and second source.On the other hand, vehicle regenerate time, to power-supply system input electric power while traveling.Specifically, such as, the electric power that the regenerative electric power by rotating machine produces by vehicle is to power-supply system input while travel.Consequently, when vehicle regenerative, most cases is to one or both input electric power (that is, charging) in the first power supply and second source.
At this, the first power supply is the power supply (power supply of so-called high capacitance type) that capacity ratio second source is large.Therefore, the first power supply for longer periods can carry out the output of constant electric power compared with second source.On the other hand, second source exports the power supply (so-called, the power supply of high performance type) larger than the first power supply.Therefore, second source (suddenly anxious) can carry out the input and output of electric power more rapidly compared with the first power supply.
It should be noted that, such as, battery can be used as the first power supply, make electricity container (in other words, condenser) as second source.Or, such as, high capacitance type battery (that is, the battery that capacity ratio high performance type battery is large) can be used as the first power supply, use high performance type battery (that is, exporting the battery larger than high capacitance type battery) as second source.Or, such as, high capacitance type cond (that is, the cond that capacity ratio high performance type cond is large) can be used as the first power supply, use high performance type cond (that is, exporting the cond larger than high capacitance type cond) as second source.
In order to control such vehicle (in other words, the power-supply system that such vehicle possesses), power control of the present invention possesses adjustment unit and setup unit.
(namely adjustment unit adjusts the electric power storage surplus of the first power supply, the remaining electric capacity of the electric power of the first power supply accumulation, such as, SOC (StateOfCharge)) and second source electric power storage surplus (namely, the remaining electric capacity of the electric power of second source accumulation, such as, SOC (StateOfCharge)) at least one party.Such as, it is possible that adjustment unit is with the electric power storage surplus making the mode of the electric power storage surplus of the first power supply consistent with aim parameter (in other words, following) adjust the first power supply.That is, it is possible that, adjustment unit adjusts the electric power storage surplus of the first power supply in the mode making the difference between the electric power storage surplus of the first power supply and aim parameter and reduce (preferably becoming 0).Equally, it is possible that adjustment unit is with the electric power storage surplus making the mode of the electric power storage surplus of second source consistent with aim parameter (in other words, following) adjust second source.That is, it is possible that, adjustment unit adjusts the electric power storage surplus of second source in the mode making the difference between the electric power storage surplus of second source and aim parameter and reduce (preferably becoming 0).
Now, adjustment unit can in order to adjust the electric power storage surplus of the first power supply, and with the input of the electric power carrying out the specified amount to the first power supply (namely, charging) and electric power from the specified amount of the first power supply output (that is, discharging) in the mode of at least one party control the first power supply and second source.Equally, adjustment unit can in order to adjust the electric power storage surplus of second source, and with the input of the electric power carrying out the specified amount to second source (namely, charging) and electric power from the specified amount of second source output (that is, discharging) in the mode of at least one party control the first power supply and second source.
Especially, adjustment unit by the first power supply with supply the electric power accepting the amount corresponding with desired supply receptance between second source, adjust the electric power storage surplus of at least one party in the first power supply and second source.Specifically, adjustment unit can adjust the electric power storage surplus of at least one party in the first power supply and second source by the electric power exporting the amount corresponding with desired supply receptance from the first power supply to second source.On this basis or be replaced in this, adjustment unit can adjust the electric power storage surplus of at least one party in the first power supply and second source by the electric power exporting the amount corresponding with desired supply receptance from second source to the first power supply.It should be noted that, " supply receptance " represents that time per unit supplies the arbitrary index of the amount of power of acceptance between the first power supply and second source directly or indirectly.
Setup unit sets " the supply receptance " of adjustment unit use according to the speed of a motor vehicle of vehicle.Specifically, setup unit is with the mode (that is, the mode making supply receptance change with the change according to the speed of a motor vehicle) making supply receptance according to the speed of a motor vehicle and change setting supply receptance.
Like this, when power control of the present invention supplies in the electric power storage surplus in order to adjust at least one party in the first power supply and second source and accepts electric power between the first power supply and second source, the supply receptance of the electric power between the first power supply and second source can be changed according to the speed of a motor vehicle.Consequently, when power control of the present invention supplies in the electric power storage surplus in order to adjust at least one party in the first power supply and second source and accepts electric power between the first power supply and second source, can operating characteristic is different effectively the first power supply and second source.
As an example, imagine such as larger with the speed of a motor vehicle, the mode that supply receptance is less sets the situation of supply receptance.
First, when the speed of a motor vehicle is relatively little, relatively reduced by the possibility of regenerative ratio looks to large electric power.Like this, in order to adjust the electric power storage surplus of at least one party in (such as, increasing) the first power supply and second source, the electric power supplying acceptance between the first power supply and second source is preferably used in.Based on such situation, supply receptance when the speed of a motor vehicle is relatively little and relatively increase, thus increase the first power supply is relative with the electric power supplying acceptance between second source.Therefore, by the first power supply with supply the relative large electric power accepted between second source, the electric power storage surplus of at least one party in the first power supply and second source can be adjusted well.
And when the speed of a motor vehicle is relatively little, the acceleration etc. after being preferably is prepared and makes the electric power storage surplus of at least one party in the first power supply and second source relatively increase.Based on such situation, supply receptance when the speed of a motor vehicle is relatively little and relatively increase, thus increase the first power supply is relative with the electric power supplying acceptance between second source.Therefore, by the first power supply with supply the relative large electric power accepted between second source, the state that the electric power storage surplus of at least one party in the first power supply and second source is relatively large can be maintained well.Consequently, even if electric power that power-supply system should export increases with accelerating to wait, at least one party in the first power supply and second source also can export the required electric power such as acceleration well.That is, vehicle can travel in the mode meeting the rideabilities such as acceleration well.
Especially under the state that the speed of a motor vehicle is relatively little in order to meet rideability (such as, accelerate with relatively large acceleration/accel) and power-supply system temporarily should export large electric power when, preferably by making the temporary transient output power of second source that output is relatively large, meet the electric power that power-supply system should export.Like this, the electric power storage surplus of second source preferably increases relatively.Based on such situation, supply receptance when the speed of a motor vehicle is relatively little and relatively increase, thus increase the first power supply is relative with the electric power supplying acceptance between second source.Therefore, by the first power supply with supply the relative large electric power accepted between second source, the state that the electric power storage surplus of second source is relatively large can be maintained well.Consequently, second source is easily in order to meet rideability and output power.In other words, not easily produce and corresponding to the variation of electric power that power-supply system should export and second source and temporarily answer the timing of output power, second source cannot the state of affairs of output power.That is, vehicle can travel in the mode meeting the rideabilities such as acceleration well.
On the other hand, when the speed of a motor vehicle is relatively large, the possibility being produced relatively large electric power by regeneration is afterwards increased relatively.Like this, (such as, increase) the electric power storage surplus of at least one party in the first power supply and second source in order to adjust and be used in that the first power supply is relative with the essentiality of the electric power supplying acceptance between second source to be reduced.Namely, the electric power produced by regenerating can be used to adjust (such as, increase) the electric power storage surplus of at least one party in the first power supply and second source, thus may cause that the first power supply of losing is relative with the essentiality that the supply of the electric power between second source accepts to be reduced.Based on such situation, supply receptance when the speed of a motor vehicle is relatively large and relatively reduce, thus reduce the first power supply is relative with the electric power supplying acceptance between second source.Therefore, be accepted as with the first power supply and the supply of the electric power between second source that the loss of cause is relative to be reduced, thus the burnup performance of vehicle improves.
And when the speed of a motor vehicle is relatively large, the possibility accelerated further afterwards reduces relatively, the essentiality that the electric power storage surplus of at least one party thus in the first power supply and second source increases relatively reduces relatively.Like this, (such as, increase) the electric power storage surplus of at least one party in the first power supply and second source in order to adjust and be used in that the first power supply is relative with the essentiality of the electric power supplying acceptance between second source to be reduced.Therefore, the first power supply lost may be caused relatively with the essentiality that the supply of the electric power between second source accepts to reduce.Based on such situation, supply receptance when the speed of a motor vehicle is relatively large and relatively reduce, thus reduce the first power supply is relative with the electric power supplying acceptance between second source.Therefore, be accepted as with the first power supply and the supply of the electric power between second source that the loss of cause is relative to be reduced, thus the burnup performance of vehicle improves.
Like this, when power control of the present invention supplies in the electric power storage surplus in order to adjust at least one party in the first power supply and second source and accepts electric power between the first power supply and second source, can operating characteristic is different effectively the first power supply and second source.Consequently, power control of the present invention can realize to the different characteristic of vehicle needs (such as simultaneously, the characteristic of above-mentioned attention rideability or the characteristic of attention burnup performance), and the electric power storage surplus of at least one party in the first power supply and second source can be adjusted.
<2>
In other scheme of power control of the present invention, described setup unit is larger with the described speed of a motor vehicle, and the mode that described supply receptance is less sets described supply receptance.
According to the program, as mentioned above, when the speed of a motor vehicle is relatively little, relative large electric power is accepted with supplying between second source at the first power supply, thus can adjust the electric power storage surplus of at least one party in the first power supply and second source well, and vehicle can travel in the mode meeting the rideabilities such as acceleration well.On the other hand, when the speed of a motor vehicle is relatively large, accept relative little electric power (that is, the loss being accepted as cause with the supply of the electric power between the first power supply and second source reduces relatively) at the first power supply with supplying between second source, thus the burnup performance of vehicle improves.Namely, power control can realize to the different characteristic of vehicle needs (such as simultaneously, the characteristic of above-mentioned attention rideability or the characteristic of attention burnup performance), and the electric power storage surplus of at least one party in the first power supply and second source can be adjusted well.
<3>
In other scheme of power control of the present invention, described setup unit sets described supply receptance to make the amount of power of the time per unit exported to described second source from described first power supply i.e. the first supply receptance from the amount of power mode that is the second supply receptance is different of the time per unit exported to described first power supply from described second source.
According to the program, consider that the characteristic of the first power supply is different from the characteristic of second source, the supply receptance (first supply receptance) that setup unit separately can set the electric power exported from the first power supply to second source and the supply receptance (second supplies receptance) of electric power exported to the first power supply from second source.Consequently, the supply receptance that power control can change according to corresponding to the speed of a motor vehicle, the first power supply that more effectively operating characteristic is different and second source, and the electric power storage surplus that can adjust at least one party in the first power supply and second source.Consequently, power control can realize to the different characteristic of vehicle needs (such as simultaneously, the characteristic of above-mentioned attention rideability or the characteristic of attention burnup performance), and the electric power storage surplus of at least one party in the first power supply and second source can be adjusted.
<4>
Set in the scheme of the power control supplying receptance described above to make the first supply receptance and second supply the different mode of receptance, described setup unit is larger with the described speed of a motor vehicle, and the mode that described first supply receptance is less sets described supply receptance.
According to the program, the speed of a motor vehicle is larger, and the electric power exported from the first power supply to second source is less.Below, about the technique effect of the program, adjust (typically increasing) angle that the electric power storage surplus of second source is such from the main electric power using the first power supply to export to second source and be described.
When the speed of a motor vehicle is relatively little, relatively reduced by the possibility of regenerative ratio looks to large electric power.Like this, in order to adjust the electric power storage surplus of (such as, increasing) second source, the electric power exported from the first power supply to second source is preferably used.Based on such situation, when the speed of a motor vehicle is relatively little, the first supply receptance increases relatively, and the electric power thus exported from the first power supply to second source increases relatively.Therefore, by the relatively large electric power exported from the first power supply to second source, the electric power storage surplus of second source can be adjusted well.
And when the speed of a motor vehicle is relatively little, the acceleration etc. after being preferably is prepared and makes the electric power storage surplus of second source relatively increase.In other words, in order to meet rideability (such as under the state that the speed of a motor vehicle is relatively little, accelerate with relatively large acceleration/accel) and power-supply system temporarily should export large electric power when, preferably by the electric power making the temporary transient output power of the relatively large second source of output should export to meet power-supply system.Like this, the electric power storage surplus of preferred second source increases relatively.Based on such situation, when the speed of a motor vehicle is relatively little, the first supply receptance increases relatively, and the electric power thus exported from the first power supply to second source increases relatively.Therefore, by the relatively large electric power exported from the first power supply to second source, the state that the electric power storage surplus of second source is relatively large can be maintained well.Consequently, even if electric power that power-supply system should export increases with accelerating to wait, second source also can export the required electric power such as acceleration well.In other words, not easily occur in the variation of the electric power that should export corresponding to power-supply system and second source temporarily answers the timing of output power, second source cannot the state of affairs of output power.That is, vehicle can travel in the mode meeting the rideabilities such as acceleration well.
On the other hand, when the speed of a motor vehicle is relatively large, the possibility being produced relatively large electric power by regeneration is afterwards increased relatively.Like this, the essentiality of the electric power exported from the first power supply to second source is used relatively to reduce in order to adjust the electric power storage surplus of (such as, increasing) second source.That is, the electric power produced by regenerating can being used to adjust the electric power storage surplus of (such as, increasing) second source, the essentiality of the output of the electric power from the first power supply to second source lost thus may be caused relatively to reduce.Equally, when the speed of a motor vehicle is relatively large, the possibility accelerated further afterwards reduces relatively, and the essentiality that thus the electric power storage surplus of second source increases relatively reduces relatively.Therefore, the essentiality of the output of the electric power from the first power supply to second source lost may be caused relatively to reduce.Based on such situation, when the speed of a motor vehicle is relatively large, the first supply receptance reduces relatively, and the electric power thus exported from the first power supply to second source reduces relatively.Therefore, relatively reduce with the loss being cause to the output of the electric power of second source from the first power supply, thus the burnup performance of vehicle improves.
Like this, in this scenario, power control can realize the different characteristic (such as, the characteristic of above-mentioned attention rideability or the characteristic of attention burnup performance) to vehicle needs simultaneously, and can adjust the electric power storage surplus of at least one party in the first power supply and second source.
<5>
Set in the scheme of the power control supplying receptance described above to make the first supply receptance and second supply the different mode of receptance, described setup unit is larger with the described speed of a motor vehicle, and the mode that described second supply receptance is larger sets described supply receptance.
According to the program, the speed of a motor vehicle is larger, then the electric power exported to the first power supply from second source is less.Below, about the technique effect of the program, adjust (typically reducing) angle that the electric power storage surplus of second source is such from the main electric power using second source to export to the first power supply and be described.
When the speed of a motor vehicle is relatively little, for acceleration etc. is afterwards prepared and the electric power storage surplus of second source preferably increases relatively.Like this, the essentiality adjusting the electric power storage surplus of (such as, reducing) second source reduces relatively.Therefore, the essentiality of the output from second source to the electric power of the first power supply of losing may be caused relatively to reduce.Based on such situation, when the speed of a motor vehicle is relatively little, the second supply receptance reduces relatively, and the electric power thus exported from second source to the first power supply reduces relatively.Therefore, relatively reduce with the loss that the output from second source to the electric power of the first power supply is cause, thus the burnup performance of vehicle improves.And the electric power exported to the first power supply from second source reduces relatively, the state that the electric power storage surplus that thus can maintain second source well increases relatively.Therefore, even if electric power that power-supply system should export increases with accelerating to wait, second source also can export the required electric power such as acceleration well.That is, vehicle can travel in the mode meeting the rideabilities such as acceleration well.
On the other hand, when the speed of a motor vehicle is relatively large, the possibility being produced relatively large electric power by regeneration is afterwards increased relatively.Like this, in order to ensure the leeway can accumulating the electric power produced by regenerating, the essentiality adjusting the electric power storage surplus of (such as, reducing) second source when the electric power storage surplus of second source is relatively large increases relatively.Therefore, the essentiality of the electric power exported to the first power supply from second source is used relatively to increase in order to adjust the electric power storage surplus of (such as, reducing) second source.Based on such situation, when the speed of a motor vehicle is relatively large, the second supply receptance increases relatively, thus relatively increases from second source the electric power that the first power supply exports.Therefore, second source can guarantee the leeway can accumulating the electric power produced by regenerating, and thus relatively reduces with the loss exceeded for cause of the electric power produced by regenerating.Consequently, the burnup performance of vehicle improves.
Like this, in this scenario, power control can realize the different characteristic (such as, the characteristic of above-mentioned attention rideability or the characteristic of attention burnup performance) to vehicle needs simultaneously, and can adjust the electric power storage surplus of at least one party in the first power supply and second source.
Such effect of the present invention and other advantage are more clear and definite by the following embodiment that illustrates.
Accompanying drawing explanation
Fig. 1 is the block diagram of an example of the structure of the vehicle representing present embodiment.
Fig. 2 is the diagram of circuit of the flow process of control action (being in fact the control action of power-supply system, is the SOC center control action of battery and the cond) entirety of the vehicle representing present embodiment.
Fig. 3 represents that the speed of a motor vehicle and electric power supply the coordinate diagram of the relation of receptance.
Fig. 4 is the coordinate diagram of the temperature characterisitic representing battery and cond.
Fig. 5 represents that the speed of a motor vehicle and electric power supply the coordinate diagram of the relation of receptance.
Detailed description of the invention
Below, with reference to accompanying drawing, illustrate and the embodiment of situation of the present invention is applied as the example for implementing mode of the present invention for the vehicle 1 possessing dynamotor 10.
(1) structure of vehicle
First, with reference to Fig. 1, the structure of the vehicle 1 of present embodiment is described.At this, Fig. 1 is the block diagram of an example of the structure of the vehicle 1 representing present embodiment.
As shown in Figure 1, vehicle 1 possesses dynamotor 10, axletree 21, wheel 22, power-supply system 30, the ECU40 of a concrete example as " power control (that is, control unit and adjustment unit) ".
Dynamotor 10 is when power running, and the main electric power exported from power-supply system 30 that uses drives, and plays function thus as the electrical motor supplying power (that is, the power needed for the traveling of vehicle 1) to axletree 21.And dynamotor 10 is when regenerating, and the electrical generator charged mainly as the battery 31 for possessing power-supply system 30 and cond 32 plays function.
Axletree 21 is the transmitter shafts for being transmitted to wheel 22 by the power exported from dynamotor 10.
Wheel 22 is the unit transmitted to road surface by the power transmitted via axletree 21.Fig. 1 illustrates that vehicle 1 possesses the example of each wheel 22 in left and right, but in fact preferred possess each wheel 22 (that is, possessing total 4 wheels 12) all around.
It should be noted that, Fig. 1 exemplifies the vehicle 1 possessing single dynamotor 10.But vehicle 1 can possess the dynamotor 10 of more than 2.And vehicle 1, except possessing dynamotor 10, can also possess driving engine.That is, the vehicle 1 of present embodiment can be electric motor vehicle or motor vehicle driven by mixed power.
The electric power that dynamotor 10 plays needed for function as electrical motor, when power running, exports to dynamotor 10 by power-supply system 30.And when regenerating, the electric power that the dynamotor 10 as electrical generator performance function sends inputs from dynamotor 10 to power-supply system 30.
Such power-supply system 30 possesses battery 31, the cond 32 as a concrete example of " second source ", electric power converter 33, smooth condenser 34, the inverter 35 of the concrete example as " the first power supply ".
Battery 31 is the storage batterys utilizing electrochemical reaction (that is, chemical energy being converted to the reaction of electric energy) etc. can carry out the input and output (that is, discharge and recharge) of electric power.As an example of such battery 31, such as lead battery, lithium ion battery, Ni-MH battery, fuel cell etc. can be enumerated.
Cond 32 utilizes the effect of physics of accumulated charge (that is, electric energy) or the effect of chemistry and can carry out the input and output of electric power.As an example of such cond 32, such as double charge layer capacitor etc. can be enumerated as an example.
It should be noted that, also can replace battery 31 and cond 32 and use arbitrary two kinds of power supplys that can carry out the input and output of electric power.In this case, replace battery 31 and the power supply that uses with replace compared with cond 32 and the power supply that uses, can be the power supply of electric capacity (or energy density is large) greatly.Or, replace battery 31 and the power supply that uses with replace compared with cond 32 and the power supply that uses, can be the power supply that for longer periods can carry out the output of constant electric power.And, replace cond 32 and the power supply that uses with replace compared with battery 31 and the power supply that uses, can be the power supply that output is large.Or, replace cond 32 and the power supply that uses with replace compared with battery 31 and the power supply that uses, can be the power supply that (suddenly urgency) can carry out the input and output of electric power rapidly.As an example of such two kinds of power supplys, can enumerate such as that high capacitance type battery is (namely, replace the power supply of battery 31 and use) and high performance type battery is (namely, replace cond 32 and use power supply), high capacitance type cond (namely, replace the power supply of battery 31 and use) and high performance type cond (that is, replacing the power supply of cond 32 and use).
Electric power converter 33 under the control of ECU40, the requirement electric power (typically power-supply system 30 should export for dynamotor 10 electric power) required according to power-supply system 30 and electric power that conversion battery 31 exports and the electric power that cond 32 exports.Electric power after conversion exports to inverter 35 by electric power converter 33.And, electric power converter 33 is under the control of ECU40, according to power-supply system 30 require requirement electric power (typically to the electric power that power-supply system 30 should input, in fact the electric power that should input battery 31 and cond 32) change the electric power (that is, the electric power produced by the regeneration of dynamotor 10) inputted from inverter 35.Electric power after conversion exports at least one party in battery 31 and cond 32 by electric power converter 33.By the conversion of such electric power, electric power converter 33 can control in fact the distribution of the distribution of battery 31 and the electric power between cond 32 and inverter 35 and the electric power between battery 31 and cond 32.
It should be noted that, Fig. 1 exemplifies the power-supply system 30 possessing the single electric power converter 33 that battery 31 and cond 32 share.But power-supply system 30 can possess the electric power converter 33 (such as, corresponding with battery 31 electric power converter 33 and the electric power converter 33 corresponding with cond 32) of more than 2.
Smooth condenser 34 when power running, for variation (variation of the voltage of the power lead in fact between electric power converter 33 and inverter 34) smoothingization of the electric power supplied from electric power converter 33 to inverter 34.Equally, smooth condenser 34 regenerate time, for variation (variation of the voltage of the power lead in fact between electric power converter 33 and inverter 34) smoothingization of the electric power supplied from inverter 34 to electric power converter 33.
Inverter 35, when power running, converts the electric power exported from electric power converter 33 (direct current power) to alternating electromotive force.Then, the electric power converting alternating electromotive force to supplies to dynamotor 10 by inverter 35.And inverter 35 is when regenerating, and the electric power (alternating electromotive force) sent by dynamotor 10 converts direct current power to.Then, the electric power converting direct current power to supplies to electric power converter 33 by inverter 35.
ECU40 is the electronic control unit of the action entirety that can control vehicle 1.ECU40 possesses CPU (CentralProcessingUnit), ROM (ReadOnlyMemory) and RAM (RandomAccessMemory) etc.
Especially ECU40 controls the distribution of the electric power in above-mentioned electric power converter 33.More specifically, ECU40 is to make the SOC of battery 31 (StateOfCharge) consistent with the battery SOC center of the aim parameter of the SOC as battery 31 and to make the SOC of cond 32 and the distribution controlling the electric power of electric power converter 33 as the mode that the cond SOC center of the aim parameter of the SOC of cond 32 is consistent.Now, ECU40 such as with from battery 31 to cond 32 or to the mode of dynamotor 10 output power or control electric power converter 33 from cond 32 or dynamotor 10 to the mode of battery 31 input electric power, makes the SOC of battery 31 consistent with battery SOC center thus.Equally, ECU40 such as with from cond 32 to the mode of battery 31 or dynamotor 10 output power or to control electric power converter 33 from battery 31 or dynamotor 10 to the mode of cond 32 input electric power, make the SOC of cond 32 consistent with cond SOC center thus.
Below, continue make the SOC of battery 31 consistent with battery SOC center about what carry out under the control of ECU40 and make the detailed description of the consistent control of the SOC of cond 32 and cond SOC center (after, be suitably called " control of SOC center ") action.
(2) the SOC center control action of battery and cond
Next, with reference to Fig. 2, illustrate the vehicle 1 of present embodiment control action (essence on be the control action of power-supply system 30, and be the SOC center control action of battery 31 and cond 32).Fig. 2 is the diagram of circuit of the flow process of the entirety of the control action (be in fact the control action of power-supply system 30, and be the SOC center control action of battery 31 and cond 32) of the vehicle 1 representing present embodiment.
As shown in Figure 2, ECU40 sets electric power supply receptance, supplies the amount (step S11) of the time per unit of the electric power of acceptance when this electric power supply receptance is defined in the SOC center control action carrying out battery 31 and cond 32 between battery 31 and cond 32.Specifically, ECU40 sets electric power supply receptance according to the speed of a motor vehicle of vehicle 1.Therefore, ECU40 preferably suitably obtains the speed of a motor vehicle that not shown car speed sensor etc. detects.
At this, with reference to Fig. 3, the set action of the electric power supply receptance corresponding with the speed of a motor vehicle is described.Fig. 3 represents that the speed of a motor vehicle and electric power supply the coordinate diagram of the relation of receptance.
As shown in Fig. 3 (a), ECU40 is preferably larger with the speed of a motor vehicle, and the mode that electric power supply receptance is less sets, and (in other words, adjusting) supplies receptance.Now, ECU40 can set electric power supply receptance by referring to the coordinate diagram (or, map or form etc.) shown in Fig. 3 (a).
It should be noted that, as shown in Fig. 3 (b), the amount defining the time per unit of the electric power exported from battery 31 to cond 32 at this said " electric power supply receptance " and these both sides of amount of the time per unit of electric power exported from cond 32 to battery 31.Therefore, in the present embodiment, the amount of the time per unit of the electric power exported from battery 31 to cond 32 is identical with the amount of the time per unit of the electric power exported to battery 31 from cond 32.
Again in fig. 2, afterwards, ECU40 carries out SOC center control (step S12) of battery 31 and cond 32.Specifically, ECU40 is with the input and output (controlling in fact the distribution of the electric power of electric power converter 33) making the SOC of battery 31 mode consistent with battery SOC center control the electric power of battery 31 and cond 32.Equally, ECU40 is with the input and output (in fact, controlling the distribution of the electric power of electric power converter 33) making the SOC of cond 32 mode consistent with cond SOC center control the electric power of battery 31 and cond 32.
More specifically, when the SOC of battery 31 is less than battery SOC center, ECU40 is to control the distribution of the electric power of electric power converter 33 to the mode of battery 31 output power (that is, charging to battery 31) from arbitrary electric power source.Such as, it is possible that ECU40 is to control the distribution of the electric power of electric power converter 33 from cond 32 or dynamotor 10 to the mode of battery 31 output power.Consequently, the SOC of battery 31 increases, and thus ECU40 can make the SOC of battery 31 consistent with battery SOC center.
Equally, when the SOC of battery 31 is larger than battery SOC center, ECU40 is to control the distribution of the electric power of electric power converter 33 from the mode of battery 31 to arbitrary load output power (that is, battery 31 discharges).Such as, it is possible that ECU40 is to control the distribution of the electric power of electric power converter 33 to the mode of cond 32 or dynamotor 10 output power from battery 31.Consequently, the SOC of battery 31 reduces, and thus ECU40 can make the SOC of battery 31 consistent with battery SOC center.
Equally, when the SOC ratio capacitance device SOC center of cond 32 is little, ECU40 is to control the distribution of the electric power of electric power converter 33 to the mode of cond 32 output power (that is, charging to cond 32) from arbitrary electric power source.Such as, it is possible that ECU40 is to control the distribution of the electric power of electric power converter 33 from battery 31 or dynamotor 10 to the mode of cond 32 output power.Consequently, the SOC of cond 32 increases, and thus ECU40 can make the SOC of cond 32 consistent with cond SOC center.
Equally, when the SOC ratio capacitance device SOC center of cond 32 is large, ECU40 is to control the distribution of the electric power of electric power converter 33 from the mode of cond 32 to arbitrary load output power (that is, cond 32 discharges).Such as, it is possible that ECU40, with from cond 32 to the mode of battery 31 or dynamotor 10 output power, controls the distribution of the electric power of electric power converter 33.Consequently, the SOC of cond 32 reduces, and thus ECU40 can make the SOC of cond 32 consistent with cond SOC center.
It should be noted that, the situation that also can be increased the SOC of battery 31 by cond 32 to battery 31 output power is described above.But, the electric capacity 1 figure place degree little of the electric capacity of battery 31 of cond 32.Therefore, cond 32 possibility that do not become the electric power that fully can increase the SOC of battery 31 little like that to the electric power that battery 31 exports is high.That is, cond 32 possibility that electric power large like that for the SOC that fully can increase battery 31 cannot be exported battery 31 is high.Consequently, the electric power that cond 32 pairs of batteries 31 export in order to the SOC center control of battery 31 may become simple useless loss.
Equally, the situation that also can reduce the SOC of battery 31 by battery 31 pairs of cond 32 output powers is described above.But, the electric capacity of cond 32 relative to battery 31 electric capacity and reduce 1 figure place degree.Therefore, battery 31 possibility that do not become the electric power that fully can reduce the SOC of battery 31 little like that for the electric power that cond 32 can export is high.That is, cannot receive the possibility of the input of the SOC that fully can reduce battery 31 electric power large like that from battery 31 high for cond 32.Consequently, the electric power that battery 31 pairs of conies 32 export in order to the SOC center control of battery 31 may become simple useless loss.
When considering such situation, ECU40 controls in order to the SOC center of battery 31, can not be used in the electric power supplying acceptance between battery 31 and cond 32.In other words, the electric power supplying acceptance between battery 31 and cond 32 mainly controls preferably in the SOC center of cond 32 and uses.Below, for the purpose of simplifying the description, the electric power supplying acceptance between battery 31 and cond 32 control mainly as the SOC center in order to cond 32 and the electric power used to advance explanation.
It should be noted that, in order to the SOC center of battery 31 controls, in untapped situation, above-mentioned electric power supply receptance can be described as in fact the SOC center representing cond 32 and controls and between battery 31 and cond 32, supply the amount of the time per unit of the electric power of acceptance the electric power supplying acceptance between battery 31 and cond 32.In other words, electric power supply receptance can be described as in fact the SOC that represents and increase cond 32 and the amount of the time per unit of electric power that exports from the battery 31 pairs of conies 32 and the amount of the time per unit of electric power exported from cond 32 pairs of batteries 31 in order to the SOC reducing cond 32.
In the present embodiment, the supply that ECU40 carries out electric power between battery 31 and cond 32 accepts, carry out the control of SOC center with the electric power set in step s 11 supply receptance electrically to supply acceptance.Specifically, such as, when the speed of a motor vehicle is relatively little, compared with the situation that the speed of a motor vehicle is relatively large, relatively large electric power supply receptance is set.Therefore, when ECU40 carries out the control of SOC center under the situation that the speed of a motor vehicle is relatively little, compared with carrying out the situation of SOC center control under the situation that the speed of a motor vehicle is relatively large, with the distribution making the relative mode increased of electric power supplying acceptance between battery 31 with cond 32 control the electric power of electric power converter 33.On the other hand, such as, when the speed of a motor vehicle is relatively large, compared with the situation that the speed of a motor vehicle is relatively little, relatively little electric power supply receptance is set.Therefore, when ECU40 carries out the control of SOC center under the situation that the speed of a motor vehicle is relatively large, compared with carrying out the situation of SOC center control under the situation that the speed of a motor vehicle is relatively little, with the distribution making the relative mode reduced of electric power supplying acceptance between battery 31 with cond 32 control the electric power of electric power converter 33.
At this, when the speed of a motor vehicle is relatively little, the possibility producing relatively large electric power by regenerating reduces relatively.Like this, the SOC center in order to carry out cond 32 controls (such as, increasing SOC) and be preferably used in the electric power supplying acceptance between battery 31 and cond 32.Based on such situation, when the speed of a motor vehicle is relatively little, electric power supply receptance increases relatively, and the electric power thus supplying acceptance between battery 31 with cond 32 is relative to be increased.Therefore, by supplying the relative large electric power accepted between battery 31 with cond 32, the SOC center carrying out cond 32 well controls.
And, when the speed of a motor vehicle is relatively little, for acceleration afterwards etc. (that is, power-supply system 10 require the increase etc. of electric power) is prepared and the SOC of cond 32 preferably increases relatively.Based on such situation, when the speed of a motor vehicle is relatively little, electric power supply receptance increases relatively, and the electric power thus supplying acceptance between battery 31 with cond 32 is relative to be increased.Therefore, by supplying the relative large electric power accepted between battery 31 with cond 32, cond 32 being charged, thus can maintain the state that the SOC of cond 32 is relatively large well.Consequently, even if electric power that power-supply system 30 should export increases with accelerating to wait, cond 32 also can export the required electric power such as acceleration well.That is, vehicle 1 can travel in the mode meeting the rideabilities such as acceleration well.
Especially, in order to meet rideability (such as under the state that the speed of a motor vehicle is relatively little, accelerate with relatively large acceleration/accel) and power-supply system 10 temporarily should export large electric power when, preferably by export relatively large cond 32 temporarily output power meet the electric power that power-supply system 10 should export.Like this, the SOC of cond 32 preferably increases relatively.Based on such situation, when the speed of a motor vehicle is relatively little, electric power supply receptance increases relatively, and the electric power thus supplying acceptance between battery 31 with cond 32 is relative to be increased.Therefore, by supplying the relative large electric power accepted between battery 31 with cond 32, cond 32 being charged, thus can maintain the state that the SOC of cond 32 is relatively large well.Consequently, cond 32 is in order to meet rideability and easy output power.In other words, not easily produce and corresponding to the variation of electric power that power-supply system 10 should export and cond 32 and temporarily answer the timing of output power, cond 32 cannot the state of affairs of output power.That is, vehicle 1 can travel in the mode meeting the rideabilities such as acceleration well.
On the other hand, when the speed of a motor vehicle is relatively large, the possibility being produced relatively large electric power by regeneration is afterwards increased relatively.Like this, the SOC center (such as, increasing) cond 32 in order to carry out controls and is used in that the essentiality of the electric power supplying acceptance between battery 31 with cond 32 is relative to be reduced.That is, the SOC center using the electric power produced by regenerating can carry out (such as, increase) cond 32 controls, and therefore may cause that the battery 31 that loses is relative with the essentiality that the supply of the electric power between cond 32 accepts to be reduced.Based on such situation, when the speed of a motor vehicle is relatively large, electric power supply receptance reduces relatively, and the electric power thus supplying acceptance between battery 31 with cond 32 is relative to be reduced.Therefore, be accepted as with the supply of the electric power between battery 31 with cond 32 that the loss of cause is relative to be reduced, thus the burnup performance of vehicle 1 improves.
And when the speed of a motor vehicle is relatively large, the possibility accelerated further afterwards reduces relatively, and the essentiality that the SOC of cond 32 increases relatively reduces relatively.Like this, the SOC center (such as, increasing) cond 32 in order to carry out controls and is used in that the essentiality of the electric power supplying acceptance between battery 31 with cond 32 is relative to be reduced.Therefore, the battery 31 lost may be caused relatively with the essentiality that the supply of the electric power between cond 32 accepts to reduce.Based on such situation, when the speed of a motor vehicle is relatively large, electric power supply receptance reduces relatively, and the electric power thus supplying acceptance between battery 31 with cond 32 is relative to be reduced.Therefore, be accepted as with the supply of the electric power between battery 31 with cond 32 that the loss of cause is relative to be reduced, thus the burnup performance of vehicle 1 improves.
Like this, ECU40, can operating characteristic is different effectively battery 31 and cond 32 according to corresponding to the speed of a motor vehicle and the supply receptance that changes when the SOC carrying out battery 31 and cond 32 controls.Consequently, ECU40 can realize the different characteristic (such as, the characteristic of above-mentioned attention rideability or the characteristic of attention burnup performance) to vehicle needs simultaneously, and the SOC center can carrying out battery 31 and cond 32 controls.
It should be noted that, the performance of battery 31 depends on the temperature of battery 31 (that is, current temperature).Specifically, as shown in Fig. 4 (a), the temperature of battery 31 be specified ultimate temperature that the specification of this battery 31 is determined (namely, allow lower limit temperature or high limit of tolerance temperature) vicinity when, difference between the temperature of battery 31 and specified ultimate temperature is less, then the performance of battery 31 more worsens.That is, when the temperature of battery 31 is near specified ultimate temperature, the difference between the temperature of battery 31 and specified ultimate temperature is less, and the possibility that battery 31 cannot carry out the action of stable action or intention is higher.
Equally, the performance of cond 32 also depends on the temperature of cond 32.Specifically, as shown in Fig. 4 (b), the temperature of cond 32 be rating plate limit value that the specification of this cond 32 is determined (namely, allow lower limit temperature or high limit of tolerance temperature) vicinity when, difference between the temperature of cond 32 and specified ultimate temperature is less, then the performance of cond 32 more worsens.That is, when the temperature of cond 32 is near specified ultimate temperature, the difference between the temperature of cond 32 and specified ultimate temperature is less, and the possibility that cond 32 cannot carry out the action of stable action or intention is higher.
At this, at least one party in battery 31 and cond 32 cannot carry out the action of stable action or intention, ECU40, in order to prevent the deterioration of at least one party in battery 31 and cond 32, can adjust electric power supply receptance further.Such as shown in Fig. 4 (c), the at least one party of ECU40 in battery 31 and cond 32 cannot carry out the action of stable action or intention, compared with the situation can carrying out the action of stable action or intention with at least one party in battery 31 and cond 32, above-mentioned electric power supply receptance can be reduced.In this case, it is possible that the difference between the temperature of ECU40 or cond 32 less with the difference between the temperature of battery 31 and specified ultimate temperature and specified ultimate temperature is less, the mode that electric power supply receptance is less sets electric power supply receptance.
Now, such as, ECU40, in the temperature of battery 31 and when allowing between lower limit temperature difference and be less than defined threshold th21, can be judged to be that battery 31 cannot carry out stable action or the action of intention.Equally, the difference of ECU40 between the temperature and high limit of tolerance temperature of battery 31 is less than defined threshold th22, can be judged to be that battery 31 cannot carry out stable action or the action of intention.Equally, ECU40, in the temperature of cond 32 and when allowing between lower limit temperature difference and be less than defined threshold th23, can be judged to be that cond 32 cannot carry out stable action or the action of intention.Equally, the difference of ECU40 between the temperature and high limit of tolerance temperature of cond 32 is less than defined threshold th24, can be judged to be that cond 32 cannot carry out stable action or the action of intention.
It should be noted that, defined threshold th21 to defined threshold th22, preferably on the basis of specification considering battery 31, suitably can distinguish battery 31 and can carry out the arbitrary value that the state of the action of stable action or intention and battery 31 cannot carry out the state of the action of stable action or intention.
Equally, defined threshold th23 to defined threshold th24, preferably on the basis of specification considering cond 32, is set to that suitably can distinguish cond 32 enough can carry out the arbitrary value that the state of the action of stable action or intention and cond 32 cannot carry out the state of the action of stable action or intention.
(3) variation
Next, with reference to Fig. 5, the variation of the control action (be in fact the control action of power-supply system 30, and be the SOC center control action of battery 31 and cond 32) of the vehicle 1 of present embodiment is described.Fig. 5 represents that the speed of a motor vehicle of variation and electric power supply the coordinate diagram of the relation of receptance.
In the above-described embodiment, the single electric power supply receptance of the amount of the time per unit defining the electric power exported from battery 31 pairs of conies 32 and these both sides of amount from the time per unit of the electric power of cond 32 pairs of batteries 31 outputs is used.On the other hand, in variation, as shown in Fig. 5 (a), the second electric power supply receptance of the amount of the first electric power supply receptance separately using the amount of the time per unit defining the electric power exported from battery 31 pairs of conies 32 and the time per unit defining the electric power exported from cond 32 pairs of batteries 31.
Even if supply in the variation of receptance at use first electric power supply receptance and the second electric power, ECU40, also according to the speed of a motor vehicle of vehicle 1, sets the first electric power supply receptance and the second electric power supply receptance respectively.
Specifically, as shown in Fig. 5 (b), preferably larger with the speed of a motor vehicle and the less mode of the first electric power supply receptance of ECU40 sets (in other words, adjusting) the first supply receptance.On the other hand, as shown in Fig. 5 (c), ECU40 is preferably larger with the speed of a motor vehicle, and the mode that the second electric power supply receptance is larger sets (in other words, adjusting) second and supplies receptance.
Consequently, such as, when the speed of a motor vehicle is relatively little, compared with the situation that the speed of a motor vehicle is relatively large, the first relatively large electric power supply receptance and the second relatively little electric power supply receptance is set.Therefore, when ECU40 carries out the control of SOC center under the situation that the speed of a motor vehicle is relatively little, compared with carrying out the situation of SOC center control under the situation that the speed of a motor vehicle is relatively large, relatively increase with the electric power exported from the battery 31 pairs of conies 32 and control the distribution of the electric power of electric power converter 33 from the mode that the electric power that cond 32 pairs of batteries 31 export reduces relatively.
On the other hand, such as, when the speed of a motor vehicle is relatively large, compared with the situation that the speed of a motor vehicle is relatively little, the first relatively little electric power supply receptance and the second relatively large electric power supply receptance is set.Therefore, when ECU40 carries out the control of SOC center under the situation that the speed of a motor vehicle is relatively large, compared with carrying out the situation of SOC center control under the situation that the speed of a motor vehicle is relatively little, relatively reduce with the electric power exported from the battery 31 pairs of conies 32 and control the distribution of the electric power of electric power converter 33 from the mode that the electric power that cond 32 pairs of batteries 31 export increases relatively.
At this, the first electric power supply receptance specifies the amount of the time per unit of the electric power exported from battery 31 pairs of conies 32.Therefore, the first electric power supply receptance can be described as in fact to define and uses the electric power exported from battery 31 pairs of conies 32 to increase the action of the situation of the SOC of cond 32.When being conceived to the first such electric power supply receptance, following technique effect can be obtained.
First, when the speed of a motor vehicle is relatively little, the possibility producing relatively large electric power by regenerating reduces relatively.Like this, in order to increase the SOC of cond 32, preferably use the electric power exported from battery 31 pairs of conies 32.Based on such situation, when the speed of a motor vehicle is relatively little, the first electric power supply receptance increases relatively, and the electric power thus exported from battery 31 pairs of conies 32 increases relatively.Therefore, ECU40, by the relatively large electric power exported from battery 31 pairs of conies 32, can increase the SOC of cond 32.
And, when the speed of a motor vehicle is relatively little, for acceleration etc. is afterwards prepared and the SOC of cond 32 preferably increases relatively.Based on such situation, when the speed of a motor vehicle is relatively little, the first electric power supply receptance increases relatively, and the electric power thus exported from battery 31 pairs of conies 32 increases relatively.Therefore, by the relatively large electric power exported from battery 31 pairs of conies 32, cond 32 is charged, thus can maintain the state that the SOC of cond 32 is relatively large well.Consequently, even if electric power that power-supply system 30 should export increases with accelerating to wait, cond 32 also can export the required electric power such as acceleration well.That is, vehicle 1 can travel in the mode meeting the rideabilities such as acceleration well.
On the other hand, when the speed of a motor vehicle is relatively large, the possibility being produced relatively large electric power by regeneration is afterwards increased relatively.Like this, in order to increase the SOC of cond 32, the essentiality of the electric power exported from battery 31 pairs of conies 32 is used relatively to reduce.Equally, when the speed of a motor vehicle is relatively large, the possibility accelerated further afterwards reduces relatively, and the essentiality that thus SOC of cond 32 increases relatively reduces relatively.Like this, in order to increase the SOC of cond 32, the essentiality of the electric power exported from battery 31 pairs of conies 32 is used relatively to reduce.Therefore, the essentiality of the output of the electric power from battery 31 pairs of conies 32 lost may be caused relatively to reduce.Based on such situation, when the speed of a motor vehicle is relatively large, the first electric power supply receptance reduces relatively, and the electric power thus exported from battery 31 pairs of conies 32 reduces relatively.Therefore, relatively reduce with the loss that the output of the electric power from battery 31 pairs of conies 32 is cause, thus the burnup performance of vehicle 1 improves.
On the other hand, the second electric power supply receptance specifies the amount of the time per unit of the electric power exported from cond 32 to battery 31.Therefore, the second electric power supply receptance can be described as in fact to define and uses the electric power exported from cond 32 to battery 31 to reduce the action of the situation of the SOC of cond 32.When being conceived to the second such electric power supply receptance, following technique effect can be obtained.
First, when the speed of a motor vehicle is relatively little, for acceleration etc. is afterwards prepared and the SOC of cond 32 preferably increases relatively.Like this, the essentiality reducing the SOC of cond 32 reduces relatively.Therefore, the essentiality of the output from cond 32 to the electric power of battery 31 of losing may be caused relatively to reduce.Based on such situation, when the speed of a motor vehicle is relatively little, the second electric power supply receptance reduces relatively, and the electric power thus exported from cond 32 to battery 31 reduces relatively.Therefore, relatively reduce with the loss that the output from cond 32 to the electric power of battery 31 is cause, thus the burnup performance of vehicle 1 improves.And the electric power exported from cond 32 to battery 31 reduces relatively, the state that the SOC that thus can maintain cond 32 well increases relatively.Therefore, even if electric power that power-supply system 30 should export increases with accelerating to wait, cond 32 also can export the required electric power such as acceleration well.That is, vehicle 1 can travel in the mode meeting the rideabilities such as acceleration well.
On the other hand, when the speed of a motor vehicle is relatively large, the possibility being produced relatively large electric power by regeneration is afterwards increased relatively.Like this, in order to ensure the leeway can accumulating the electric power produced by regenerating, the essentiality reducing the SOC of cond 32 when the SOC of cond 32 is relatively large increases relatively.Therefore, in order to reduce the SOC of cond 32, the essentiality of the output from cond 32 to the electric power of battery 31 increases relatively.Based on such situation, when the speed of a motor vehicle is relatively large, the second electric power supply receptance is relatively large, and the electric power thus exported from cond 32 to battery 31 increases relatively.Therefore, cond 32 can guarantee the leeway can accumulating the electric power produced by regenerating, and thus relatively reduces with the loss exceeded for cause of the electric power produced by regenerating.Consequently, the burnup performance of vehicle 1 improves.
Like this, in variation, when the SOC that ECU40 carries out battery 31 and cond 32 controls, according to corresponding to the speed of a motor vehicle and the supply receptance that changes and can battery 31 that more effectively operating characteristic is different and cond 32.Consequently, ECU40 can realize the different characteristic (such as, the characteristic of above-mentioned attention rideability or the characteristic of attention burnup performance) to vehicle needs simultaneously, and the SOC center can carrying out battery 31 and cond 32 more well controls.
It should be noted that, the present invention is not violating in Accessory Right claim and the specification sheets entirety purport of invention that can read or the scope of thought and can suitably change, and the power control with such change is also contained in technological thought of the present invention.
Label declaration
1 vehicle
10 dynamotors
21 axletrees
22 wheels
30 power-supply systems
31 batteries
32 conies
33 electric power converters
34 smooth condensers
35 inverters
40ECU

Claims (5)

1. a power control, the vehicle travelled using power-supply system controls, described power-supply system comprises the first power supply and little and export these both sides of large second source with described first power supply phase ratio capacitance, and the feature of described power control is to possess:
Adjustment unit, accepting electric power by supplying between described first power supply and described second source with the supply receptance desired by the amount of power representing time per unit supply acceptance, adjusting the electric power storage surplus of at least one party in described first power supply and described second source; And
Setup unit, the mode described supply receptance being changed with the speed of a motor vehicle according to described vehicle sets described supply receptance.
2. power control according to claim 1, is characterized in that,
Described setup unit is larger with the described speed of a motor vehicle, and the mode that described supply receptance is less sets described supply receptance.
3. power control according to claim 1, is characterized in that,
Described setup unit sets described supply receptance to make the amount of power of the time per unit exported to described second source from described first power supply i.e. the first supply receptance from the amount of power mode that is the second supply receptance is different of the time per unit exported to described first power supply from described second source.
4. power control according to claim 3, is characterized in that,
Described setup unit is larger with the described speed of a motor vehicle, and the mode that described first supply receptance is less sets described supply receptance.
5. power control according to claim 3, is characterized in that,
Described setup unit is larger with the described speed of a motor vehicle, and the mode that described second supply receptance is larger sets described supply receptance.
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DE112014001595T5 (en) 2016-01-21
JP2014187758A (en) 2014-10-02

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